compress and decompress string

Posted on 2011-03-09
Medium Priority
Last Modified: 2012-05-11
I have a String encoded Base64 , and I need it to be compressed for sending the Socket.

and receiving it from socket want it to be decompress as before , the string encoded Base64 .

How can I make it??
Question by:gamjaradio
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objects earned 1004 total points
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vsudip earned 332 total points
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objects earned 1004 total points
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you can do something like this (where out is where you want to write the compressed data):

GZIPOutputStream gos = new GZIPOutputStream(out);

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CEHJ earned 664 total points
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Why is the String encoded as Base64? Doing that inflates the size of what it was originally. The purpose of it is to render binary content able to be handled as a String.
When you compress it in the  manner suggested above, you will again get binary content, which will probably be larger than it was originally.
Are you communcations string-oriented, or binary-oriented?

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ID: 35083203
I communicates with string-oriented.

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CEHJ earned 664 total points
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In that case, you should either:

a. get the byte array before it gets Base64-encoded and compress that, then Base64 encode
b. Base64-decode then apply a. above

If you can post an example Base64 string, preferably attached as a file, then we can give it a try
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objects earned 1004 total points
ID: 35089371
the code I posted above will encode your string for you.
Do the reverse to decode it

let me know if you have any problems

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